Investigators have released a a photograph of the man they believe recently assaulted two women in the Allston/Brighton area.

Despite the proximity of the two attacks, police said there is no evidence linking the assaults. Regardless, they released a photo of only one suspect.

The first incident took place on Saturday, Aug. 15 when the man is said to have assaulted a woman from behind near Harvard Street and Brighton Avenue at about 6:05 a.m. Police said the victim chased the suspect, who fled down Commonwealth Avenue.

Then on Monday, a woman came into the D-14 police station to report that a man fitting the same description indecently assaulted her at about 3 a.m. Sunday near the corner of Brighton Avenue and Park Vale Avenue. Police said the victim fought off her attacker who was seen running outbound along Brighton Avenue.

The Boston Police Sexual Assault Unit is actively investigating the assaults. Investigators hope the surveillance photo will lead them to a suspect. Anyone with any information is asked to call detectives directly at (617) 343-4400.

Police tips on staying safe:

· Always be aware of your surroundings, especially at night. When parking, walking or returning to your car, remain in well-lit and populated areas.

· Avoid walking alone late at night. When possible, walk with friends and people you know.

· Be watchful and aware. Keep your head up. Make quick eye contact with those around you and be observant of passing vehicles.

· Don’t become distracted by talking on a cell phone or listening to an iPod/similar device.

· Keep a whistle within reach. If you feel threatened, use it to signal residents that you need help. Yelling words like: “Fire!” “Help!” or “Rape!” are other effective ways of drawing attention and alerting people that you need assistance.

· Hold your car keys in your hand to use as a weapon against an attacker.

· Before going out, call ahead to let friends or family know you’re on the way. Designate a time you expect to arrive, so that in the event you fail to show up on time, they’ll know enough to begin looking for you.

· Walk with confidence. Be assertive. Don’t let anyone violate your space. Trust your instincts and know that anyone at any time can be a victim of crime. Never assume: “IT WILL NEVER HAPPEN TO ME.”

· If an unarmed attacker confronts you, believe in your ability to scare, distract, or even incapacitate the attacker enough to escape.